No difference in care. Mine got to a little over 3' tall last season, and that was with heavy competition (it is planted between HTs).

For your other question, see this thread from the Roses Forum, Top Ten Miniatures for the Garden.

I've grown Bee's Knees for a few years and it stays about 2' on it's own roots. There are SOOO many miniature roses and so many do well in Florida. Some are bloom machines and some are very stingy. Exhibitors will grow a rose that is stingy because the blooms are really nice when you get them. Some good ones (to name a few) for this area are Odessa, Sam Trivitt, Soroptomist International, Cachet, Miss Flippins, Fairhope, Kristin, a new one Dr. Troy Garrett looks good...

Several that I grow that make nice full bushs with lots of beautiful blooms are; Odessa, Tangerine Twist, Kristin, Rainbows End, Teddy Bear, Soroptimist International, Pierrine, Sweet Melody. These would be a good start to go with Bee's Knees. As a matter of fact, you will probably like the overall bushs on the mini's I have listed better then Bee's Knees. I grow Bee's Knees mostly for the beautiful blooms.

As has previously been said, Florida is a great place to grow minis/minifloras. Most roses in general do well here. If i were to make a list I would start with Kristen, Bees Knees, Pierrine, Erin Alonso, Miss Flippins, fairhope, Olympic Gold, Doris Morgan, Odessa in minis and for minifloras i would say, Tiffany Lynn, Louisville Lady and Cachet. The makings of a very good garden here and all available most anywhere.

My 'favorite of favorites' mini/minifloras are: Soroptomist International, Bees Knees, and Memphis King. Last year I got Ty and would like one more growing season to further evaluate before I add it to my 'favorites of favorites' list.